Calendar times different for different users

Calendar times different for different users

I have 2 users in my CRM acct. If I put in a calendar entry for say 2:00pm to 4:00 pm when the other user logs into her account and chooses calendar ALL she will see a different time for the appt. Like 02:00am to 04:00am
 
Both accts are using the same time zone.
 
Any ideas on the problem or fix.
 
Thanks..MG